Bis(2-hy­droxy­imino­methyl-6-meth­oxy­phenolato-κ²N,O¹)copper(II)

In the title compound, [Cu(C₈H₈NO₃)₂], the nearly planar mol­ecule (r.m.s. deviation = 0.037 Å) is centrosymmetric with the Cu^II atom lying on an inversion center. The Cu^II atom is tetra­coordinated, displaying a slightly distorted square-planar geometry. The main deviation from the ideal geometry is seen in the differences in the Cu—O [1.8833 (10) Å] and Cu—N [1.9405 (13) Å] bond lengths, while angular deviations are less than 3°. Intra­molecular O—H...O and inter­molecular Csp²—H...O hydrogen bonds form S(5) and R₂²(8) ring motifs, respectively. The latter inter­action results in chains of mol­ecules along [100].

Bis[(cyanido-κC)bis(1,10-phenanthroline-κ²N,N′)copper(II)] pentakis­(cyanido-κC)nitro­soferrate(II) dimethyl­formamide monosolvate

The title compound, [Cu(CN)(C₁₂H₈N₂)₂]₂[Fe(CN)₅(NO)]·C₃H₇NO, is formed of discrete [Cu(phen)₂CN]⁺ cations (phen is 1,10-phenanthroline), nitro­prusside [Fe(CN)₅(NO)]²⁻ anions and dimethyl­formamide (DMF) mol­ecules of crystallization. The metal atom has a distorted trigonal–bipyra­midal coordination environment, defined by four N atoms of two phen mol­ecules and a C atom of the cyanide group (in the equatorial position). The [Fe(CN)₅(NO)]²⁻ anion was found to be disordered about (but not on) a crystallographic twofold rotation axis. Geometries were restrained to ideal values. The dimethyl­formamide solvent mol­ecule was found to be disordered about a crystallographic inversion centre.